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Poster: brewster Date: May 24, 2003 10:10am
Forum: sflan Subject: barn raising a community wireless network in SF


We have the pieces to build a SF-wide community wireless network that can run at DVD video speeds by the end of the Summer. This network would have a wireless backbone built out of open-source stuff (linux, etc) and open standards (802.11b). This won't be the most reliable network, so don't give up your DSL line yet, but it will be at least very cool, and could the start of something very big.

What we are looking for is those with a roof to share and $1k "play money" to buy a radio from Clif Cox to bootstrap the network. If you are interested, please let me know, but better yet, post a message here.

Please forward this message to anyone else that you think could be seriously interested in this.

Pieces so far:
* Internet bandwidth donated for a year (Internet Archive)
* Repeater on San Bruno mountain radio tower (tim pozar, matt peterson, bawrn)
* Repeater on Presidio radio tower (dave coggeshall, maplab and presidio trust)
* Roof equipment on the exploratorium, and at 6th and mission
* 10 radios ready to go on people's houses (clif cox clifsystems.com)
* great volunteers that are helping build and support the network (bawug, alf watt, bawrn folk, etc)
* a deadline: June 6th to talk about this network at a conference
(I hate it that NYC and Seattle are consistently out wireless-ing us :)

What we are looking for:
* people who would love to build the commons
* people with a roof that can see one of the other radios
* people with $1k to spend on the gear. (if you are not satisfied by june, you get your money back)

What you would get:
* free Internet bandwidth at 3-4Mb/sec (peak) for a year
* a very cool linux based radio with a directional antenna (to get back towards the wired net),
an omni-directional antenna to allow others to connect to you, and an ethernet to go to your house.
* community-based support for the network for a year (could be a bit crufty)
* installation and initial debugging

The $1k pays Clif Cox for the gear (about $750 parts cost) and installation, software, configuration, debugging. From my experience, this is a bargain and I want to help keep Clif in business. Others in your neighborhood can hang off of your network by pointing a linksys wet11 at it.

clif@eugeneweb.com is the person to directly contact about getting one for your roof. We have probably sold out the first 10 in the first day of offering this, but lets see if we can get the orders for the next 10 or 20 to fill out the network.

-brewster
brewster@archive.org

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Poster: akb Date: Jun 4, 2003 1:03pm
Forum: sflan Subject: Re: barn raising a community wireless network in SF

A few questions.

What are the specs for Clif's boxes?

What's the architecture of the network you are building? Routing protocols? Multicast?

What are the TOS for use of the IA 'net connection? What monitoring will you do and what precautions will you take against abuse?

Encryption? Between backbone elements? Between the end users and the AP?

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Poster: brewster Date: Jun 4, 2003 1:58pm
Forum: sflan Subject: Re: barn raising a community wireless network in SF

>>A few questions.

>>What are the specs for Clif's boxes?

linux/2 200mw radios.

more data will be forthcoming when he gets back to oregon (he is spending his time on buildings this week).

>>What's the architecture of the network you are building?

simple. level 3 routing, briding dhcp packets to address out of one pool.

>> Routing protocols? Multicast?
dont know.

>>What are the TOS for use of the IA 'net connection?

Please use it! what we are interested in finding is if we can make this thing useful enough at all.

>>What monitoring will you do and what precautions will you take against abuse?

we have the ability to monitor, but we are just monitoring uptime at the moment. then we would like to see how many associations happen. we will do the normal ISP things to keep out abuse. but first we need users.

>>Encryption? Between backbone elements? Between the end users and the AP?

we dont encrypt at this point.

hope that helps. more as it happens.

-brewster


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Poster: dburkes Date: Jun 5, 2003 4:04pm
Forum: sflan Subject: Re: barn raising a community wireless network in SF

I heard Tim Pozar's presentation on BARWN at O'Reilly's Emerging Technology Conference a few months back, and I've been itching to get involved ever since.

I own my roof, and I think I'm well positioned geographically. I have line-of-sight to the San Bruno tower (for uplink), and most of CCSF and the Excelsior district has line-of-sight to me.

A few questions:

1. You mention free access for one year- any idea what happens after that?

2. Are there any photographs of what the rooftop equipment looks like? I'm in a residential neighborhood, so throwing up an antenna farm is touchy :-)

Thanks!

- Danny Burkes

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Poster: brewster Date: Jun 10, 2003 11:09am
Forum: sflan Subject: Re: barn raising a community wireless network in SF

>>1. You mention free access for one year- any idea what happens after that?

I think of it like the pioneer space probe: if it is still taking pictures past jupiter, then that is a fringe benefit.

I believe we will learn enough from this year that next year could be quite different. I would hope that we would want to upgrade the radios to 802.11a or 802.11g, for instance.




>>2. Are there any photographs of what the rooftop equipment looks like? I'm in a residential neighborhood, so throwing up an antenna farm is touchy :-)

we will be posting more soon.

-brewster



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Poster: dburkes Date: Jun 10, 2003 8:32am
Forum: sflan Subject: Re: barn raising a community wireless network in SF

Anybody?

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Poster: Matt Work Date: May 24, 2003 4:03pm
Forum: sflan Subject: Re: barn raising a community wireless network in SF

I'm interested!

not sure what I can "see" from my roof in Cole Valley/ Haight Ashbury, but I do own the roof.

Let me know what I should do to see if my location is useful to SFlan.

Matt
mwork@yahoo.com

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Poster: clif Date: May 24, 2003 4:20pm
Forum: sflan Subject: Re: barn raising a community wireless network in SF

Hi Matt,

Right now we have good sources of bandwidth on the presidio tower, and at 6th and Mission. If you can see the GG bridge you can probably see the tower peeking out just above the trees in the presidio.

Sometime I could come over and do a site survey and we can see what your coverage area would be.

Ciao,
Clif

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Poster: Drew @ alamedawireless.org Date: Jun 4, 2003 7:50am
Forum: sflan Subject: Re: barn raising a community wireless network in SF

Wow, lots of activity lately, great stuff! I too get sick of hearing how great other cities networks are going, so if you need yet another volunteer, or have any nodes with LoS over to Alameda, let me know.

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Poster: jthomason Date: May 29, 2003 9:49am
Forum: sflan Subject: Re: barn raising a community wireless network in SF

Brewster,

I have roof rights to a 12 story building at O'Farrell and Jones, and was planning to share my 1.5Mbps line anyway.

I would be happy to help out, and tell Tim Pozar not to be a stranger. :)

James Thomason
james -at- divide.org